Shares Post Modest Gains;
Ericsson Falls on Results

LONDON -- European shares traded slightly higher Friday as telecommunications and technology stocks gained, but Ericsson plunged after cutting its operating margin forecast.

Ericsson slipped in Stockholm after reporting improved third-quarter profits at its network division , but losses widened at its mobile phone unit, forcing the company to cut its operating margin forecast. Its shares fell 20.50 kronor, or 13.6%, to 130 kronor in...